Female guppy’s

[csprules]

Hello all, Iv been out of the tropical fish game for about 10 years. Feels like I’m starting new again, everything seems to have change! I currently have 4 pregnant guppy’s I’m wondering if you all know how long they all have left? Any advice would be much appreciated thank, charlie x
Sorry pictures aren’t to good…
Yellow tail
Tiger tail
Gray tail
Yellow/black tail